20212211212321 has 8 divisors (see below), whose sum is σ = 20253968459264. Its totient is φ = 20170455006240.

The previous prime is 20212211212279. The next prime is 20212211212351. The reversal of 20212211212321 is 12321211221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20212211212321 - 2²⁹ = 20211674341409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212211212292 and 20212211212301.

It is not an unprimeable number, because it can be changed into a prime (20212211212351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47745616 + ... + 48167086.

It is an arithmetic number, because the mean of its divisors is an integer number (2531746057408).

Almost surely, 2^{20212211212321} is an apocalyptic number.

It is an amenable number.

20212211212321 is a deficient number, since it is larger than the sum of its proper divisors (41757246943).

20212211212321 is an equidigital number, since it uses as much as digits as its factorization.

20212211212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520431.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 20212211212321 its reverse (12321211221202), we get a palindrome (32533422433523).

The spelling of 20212211212321 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, two hundred twelve thousand, three hundred twenty-one".